All;
I've purchased a Lenovo Thinkpad P52S back in July with the following specs:
- 8th Generation Intel® Core™ i7-8650U Processor with vPro® (1.90GHz, up to 4.20GHz with Turbo Boost, 8MB Cache) - 15.6" 4K UHD (3840 x 2160) IPS anti-glare - 32 GB DDR4 (16 + 16) 2400MHz - NVIDIA Quadro P500 2GB GDDR5
Ever since then I've had issues with lockups, cpu 'stuck' at 100%, shutdown hangs, etc
I upgraded to Fedora29 and most of the lockup and cpu stuck issues went away but the shutdown hang issue remained.
Often I would see /var/log/messages entries like this:
kernel: nouveau 0000:02:00.0: DRM: Pointer to TMDS table invalid kernel: watchdog: BUG: soft lockup - CPU#6 stuck for 22s! [Xorg:2145] kernel: NMI watchdog: Watchdog detected hard LOCKUP on cpu 2 abrt-server[1960]: Oops looks like a problem in kernel module, new component xorg-x11-drv-nouveau
I've recently deployed a change to my system that seems to have fully resolved the issue, note that I use the laptop for business, writing code, running PostgreSQL, etc, so I need none of the benefits of the NVIDIA 3D features, in fact I prefer to NOT use these in order to save on battery life.
I found a fix that forces the use of the Intel video driver (I have a dual intel/NVIDIA card) and nothing else (or so it seems).
I posted this in hopes that it will help others who may have the same issue
I added a new entry into my /etc/X11/xorg.conf file. I already had one since I wanted to force a screen resolution at boot / login time, otherwise you'll need to create one.
See my xorg.conf file below,
Note the only section needed for the "fix" is the Device Section which Sets the Driver = "intel" for Identifier "Card0"
For me this has fixed all of my issues, and I have increased battery life as well. The entry itself was generated by logging into single user mode as root and running:
X -configure
Then I simply pulled the Device section out that specified the intel driver and added only that entry into my xorg.conf file
# xorg.conf
Section "Monitor" Identifier "eDP1" Modeline "1344x756_60.00" 82.00 1344 1408 1544 1744 756 759 764 785 -hsync +vsync Option "PreferredMode" "1344x756_60.00" EndSection
Section "Monitor" Identifier "DP1" Modeline "1344x756_60.00" 82.00 1344 1408 1544 1744 756 759 764 785 -hsync +vsync Option "PreferredMode" "1344x756_60.00" EndSection
#Section "Screen" #Identifier "Default Screen" #SubSection "Display" #Modes "1368x768_60.00" ## Modes "960x720" #EndSubSection #EndSection
Section "Device" ### Available Driver options are:- ### Values: <i>: integer, <f>: float, <bool>: "True"/"False", ### <string>: "String", <freq>: "<f> Hz/kHz/MHz", ### <percent>: "<f>%" ### [arg]: arg optional #Option "Accel" # [<bool>] #Option "AccelMethod" # <str> #Option "Backlight" # <str> #Option "CustomEDID" # <str> #Option "DRI" # <str> #Option "Present" # [<bool>] #Option "ColorKey" # <i> #Option "VideoKey" # <i> #Option "Tiling" # [<bool>] #Option "LinearFramebuffer" # [<bool>] #Option "HWRotation" # [<bool>] #Option "VSync" # [<bool>] #Option "PageFlip" # [<bool>] #Option "SwapbuffersWait" # [<bool>] #Option "TripleBuffer" # [<bool>] #Option "XvPreferOverlay" # [<bool>] #Option "HotPlug" # [<bool>] #Option "ReprobeOutputs" # [<bool>] #Option "XvMC" # [<bool>] #Option "ZaphodHeads" # <str> #Option "VirtualHeads" # <i> #Option "TearFree" # [<bool>] #Option "PerCrtcPixmaps" # [<bool>] #Option "FallbackDebug" # [<bool>] #Option "DebugFlushBatches" # [<bool>] #Option "DebugFlushCaches" # [<bool>] #Option "DebugWait" # [<bool>] #Option "BufferCache" # [<bool>] Identifier "Card0" Driver "intel" BusID "PCI:0:2:0" EndSection
Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1024x768" "800x600" EndSubSection EndSection
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